/Engine/Source/Runtime/Experimental/GeometryCollectionEngine/Public/GeometryCollection/DerivedDataGeometryCollectionCooker.h
Returns the largest and plugin specific part of the cache key. This must be a alphanumeric+underscore
Version number of the plugin, for licensees.
virtual [FString](API\Runtime\Core\Containers\FString) GetPluginSpecificCacheKeySuffix() const